{
  "bibcode": "2021GCN.29226....1T",
  "body": "E. Troja (NASA/GSFC/UMCP), M. G. Bernardini (INAF-OAB),\nC. Gronwall (PSU), A. Y. Lien (GSFC/UMBC), A. Melandri (INAF-OAB),\nD. M. Palmer (LANL) and T. Sbarrato (INAF-OAB) report on behalf of the\nNeil Gehrels Swift Observatory Team:\n\nAt 20:38:11 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 210102C (trigger=1015728).  Swift did not slew due to \nan observing constraint. \nThe BAT on-board calculated location is \nRA, Dec 235.737, -37.222 which is \n   RA(J2000) = 15h 42m 57s\n   Dec(J2000) = -37d 13' 19\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a double-peaked\nstructure with a duration of about 100 sec.  The peak count rate\nwas ~3000 counts/sec (15-350 keV), at ~65 sec after the trigger. \n\nDue to a Sun observing constraint, Swift cannot slew to the BAT\nposition until 15:14 UT on 2021 January 06. There will thus be no XRT\nor UVOT data for this trigger before this time. \n\nBurst Advocate for this burst is E. Troja (eleonora.troja AT nasa.gov). \nPlease contact the BA by email if you require additional information\nregarding Swift followup of this burst. In extremely urgent cases, after\ntrying the Burst Advocate, you can contact the Swift PI by phone (see\nSwift TOO web site for information: http://www.swift.psu.edu/)",
  "circularId": 29226,
  "createdOn": 1609620449000,
  "email": "palmer@lanl.gov",
  "subject": "GRB 210102C: Swift detection of a burst",
  "submitter": "David Palmer at LANL  <palmer@lanl.gov>",
  "eventId": "GRB 210102C"
}